Closing Africa's energy gap could boost economic growth by 30 per cent by 2040. What business and policy innovations hold the greatest potential for accelerating energy provision? For a discussion CNBC Africa's Bronwyn Nielsen is joined by panellist Akinwumi Ayodeji Adesina ,President, African Development Bank (AfDB), Abidjan; Aliko Dangote, President and Chief Executive, Dangote Industries, Nigeria; Rachel Kyte, Special Representative of the Secretary-General and Chief Executive Officer, United Nations - Sustainable Energy for All, Vienna and Cyril Ramaphosa, Deputy President, South Africa.